20478304

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8311}}^1$

素因数の和:8339

約数の個数: 48

約数和(自身を含む): 50270976

約数和(自身を除く): 29792672

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 77, 88, 112, 154, 176, 224, 308, 352, 616, 1232, 2464, 8311, 16622, 33244, 58177, 66488, 91421, 116354, 132976, 182842, 232708, 265952, 365684, 465416, 639947, 731368, 930832, 1279894, 1462736, 1861664, 2559788, 2925472, 5119576, 10239152, 20478304]

約数ペア:

[(1, 20478304), (2, 10239152), (4, 5119576), (7, 2925472), (8, 2559788), (11, 1861664), (14, 1462736), (16, 1279894), (22, 930832), (28, 731368), (32, 639947), (44, 465416), (56, 365684), (77, 265952), (88, 232708), (112, 182842), (154, 132976), (176, 116354), (224, 91421), (308, 66488), (352, 58177), (616, 33244), (1232, 16622), (2464, 8311)]